The last point is so relevant. There are no official Google video tutorials on how to use their apps or their services. Almost all of these are created by others in their native language. One would expect an official one from them.
person 1: "we should make official documentation videos"
person 2: "nah, our users/community will create those for free for us"
Google seem to scarcely understand their own products, let alone know how to put across their functionality in a coherent way.